avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/board/qca/ap121/Kconfig

@@ -0,0 +1,27 @@
+if TARGET_AP121
+
+config SYS_VENDOR
+	default "qca"
+
+config SYS_BOARD
+	default "ap121"
+
+config SYS_CONFIG_NAME
+	default "ap121"
+
+config SYS_TEXT_BASE
+	default 0x9f000000
+
+config SYS_DCACHE_SIZE
+	default 32768
+
+config SYS_DCACHE_LINE_SIZE
+	default 32
+
+config SYS_ICACHE_SIZE
+	default 65536
+
+config SYS_ICACHE_LINE_SIZE
+	default 32
+
+endif